Now that's just a lie and you know it. Is this legal?
The rules also state that the path to reject those cookies must be as easy as it is to accept them, so if they have "accept all" button, they are required to also provide "reject all" button, that has similar visibility and accessibility to the "accept" button.
IIRC At least in EU, what they do is illegal and dark pattern, and hence personally I have no reason to believe their side of story on any topic.
The rules also say that you have to be able to _withdraw_ your consent as easily as you provided it, which IMHO 99% of cookie banners fail to provide for.
It might be hard to sell a product that behaves that way to websites though.
The best you can do is to complain to your country's data protection agency (in the UK this would be the ICO, in France the CNIL, etc). The problem is that they aren't enforcing the regulation enough to deter non-compliance. It's cheaper (in fact, free most of the time, the worst you will get is be asked to get into compliance despite breaching the regulation for years) to breach it for as long as you can than to respect it.
How long this takes depends on the problem and the capacity for the DPA. If Google or Facebook are involved in a new data sharing scheme, their cases will get priority over a website not setting cookies right.
Enjoy your vacation.
(I’ve been in a frustrating back-and-forth over the past couple days with a company who’s quoting me an outrageous shipping fee, and keeps telling me it’s “impossible” to ship with a different delivery service.)